Simax Test Tubes with Rim – 75 × 12mm, 1mm Wall (Box of 100)

The Simax Rimmed Test Tubes (75 × 12mm) are premium‑quality laboratory test tubes made from 3.3 borosilicate glass, offering excellent durability and reliability for routine use in school science laboratories. Designed with a rolled rim and uniform wall thickness, these test tubes provide outstanding performance when heating, mixing, or observing chemical reactions.

With a medium‑duty 1mm wall thickness, these test tubes allow efficient heat transfer while maintaining strength and resistance to breakage. Borosilicate glass is highly resistant to thermal shock and chemical corrosion, making these tubes suitable for boiling, heating, and repeated classroom use.

Supplied in a practical box of 100, these Simax test tubes are ideal for whole‑class experiments, laboratory practicals, and demonstrations. Their clear glass construction ensures excellent visibility, enabling students to clearly observe reaction progress and outcomes.

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Key Features

• Box of 100 rimmed test tubes
• Size: 75mm length × 12mm diameter
• Medium‑duty 1mm wall thickness
• Manufactured from 3.3 borosilicate glass
• Rolled rim for added strength and safer handling
• Excellent thermal shock resistance
• High chemical resistance
• Uniform wall thickness for consistent heating performance
• Clear glass for easy observation of experiments

Ideal for School Science Lessons

Well suited to KS3, GCSE, and A Level science lessons, these Simax borosilicate test tubes are an essential item for hands‑on learning in chemistry and general science. They are ideal for:

• Heating and boiling small volumes of liquids
• Observing chemical reactions and colour changes
• Carrying out qualitative and comparative tests
• Teaching students correct laboratory techniques and safety
• Demonstrating the effects of heat on substances

Strong, reliable, and classroom‑ready, these Simax rimmed test tubes support safe experimentation and help students develop confidence in practical science skills.